I am in need of a 'wide breve' accent in math mode that can stretch a little bit like \widetilde
and \widehat
do. I have tried both suggestions from Display a breve over several letters, but the first one is rather unsatisfactory for several reasons. The second one looks good on the picture, but it does not work well with single letters:
For convenience here is the code itself from the original post in the linked thread:
\makeatletter
\def\widebreve#1{\mathop{\vbox{\m@th\ialign{##\crcr\noalign{\kern\p@}%
\brevefill\crcr\noalign{\kern0.1\p@\nointerlineskip}%
$\hfil\displaystyle{#1}\hfil$\crcr}}}\limits}
\def\brevefill{$\m@th \setbox\z@\hbox{}%
\hfill\scalebox{0.7}{\rotatebox[origin=c]{90}{(}} \kern4pt $}
\makeatletter
I would like to have similarly nice wide breve as in this example
that also works for single letters in math mode and is wider than mere \breve{U}
. Think of \widetilde{U}
or \widehat{U}
. I would be happy if anyone knows how to fix it or has a better suggestion. Thanks!